ath performance degradation between Oct-12 and now?

[Adrian Chadd]

On 23 February 2013 12:16, Sven Hazejager <sven at hazejager.nl> wrote:
> I have just upgraded my ALIX router (with an Atheros 9160) from
> FreeBSD-HEAD r241243 (Oct 6, 2012) to r247155 (today) and I am
> noticing slightly lower throughput rates.
>
> With iperf, sitting 1 meter from the router, I consistently get 79-81
> Mbits/sec TCP with r241243. This "drops" to 74-76 in r247155 (never
> higher than 75.5 actually). The rates also seem to vary a bit more
> (but that's hard to quantify).
>
> Anything I should be looking for? I'm more than happy to share debug
> output etc. if instructed how to capture.

Hi,

The best thing to do is to test different kernel versions and see
which change introduced the performance degradation.

Unfortunately I can't discount the possibility that the issue is
elsewhere in the kernel or compiler toolchain. Sorry :(



Adrian